0.7.0 alpha release

[kukeiko]

What

Do all the things required to release the first version of the rewrite, which will be 0.7.0 (instead of 2.0.0 which I planned previously) What is required?

• things that already exist as issues
• things that pop up during integration of entity-space into a work-related app (which I already started)

Ideally I should not come up with new things that are not required to integrate this library into an actual app.

Why

Because It is about time to get something released!

Items

feat

• [x] ability to set composite primary keys via blueprints
• [x] ability to set composite indexes via blueprints
• [x] improve DX when declaring entity metadata
  • [x] use "optional" instead of "required"
  • [x] support string[] as from/to argument
• [x] support hydrating properties of complex types
• [x] NotInArrayCriterion.merge(), as it currently throws an Error which easily breaks app code unnecessarily.
• [x] #216
• [x] #213
• [x] #214
• [x] support primitive unions (i.e. a status property on an entity that is an enum, for a ticket it could be "open" | "rejected" | "closed")

fix

• [x] #215

refactor

• [x] improve DX when creating source endpoints
• [x] improve DX when creating hydration endpoints
• [x] #218

health

• [x] #202

[kukeiko]

0.7.0-alpha.0 is released, next version will be 0.7.0-alpha.1 until I am satisfied to drop the alpha suffix (no idea what the criteria for that is gonna be)